What do you guys have catted or cattless? HELP
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amg c63 s
What do you guys have catted or cattless? HELP
The reason I want to upgrade my c63 s is because I know it has a lot more to it. So I've been in the look for some dp's and I figured where else to ask than a community that has done it all. So what do you guys have/ recommend? Also from what companies? I've been looking at modal works high flow cats but I'm not sure. Thanks!
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From: Austin, TX
2017 Porsche 911 C4
The reason I want to upgrade my c63 s is because I know it has a lot more to it. So I've been in the look for some dp's and I figured where else to ask than a community that has done it all. So what do you guys have/ recommend? Also from what companies? I've been looking at modal works high flow cats but I'm not sure. Thanks!
One other consideration, catless downpipes will require a tune to code out the CEL you’ll get. So unless you’re cool living with the CEL on your dash, go with catted downpipes with O2 spacers on a stock tune - a ran that setup for a bit and had no problem.
The place you’ll find power gains in this car is a tune. Downpipes, intake, and other stuff will supplement it and add a bit more on top. But it’s turning up the wick on the turbos that gets you the most bang for your $/hp.
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2020 C63s Coupe
You can also consider downpipe from Red Star exhaust with GESI cats.
It is about twice more expensive than Modal but it has one of the highest quality cats fitted on to downpipe.
Also, you do not need to use any O2 sensor spacer with GESI cats.
It is about twice more expensive than Modal but it has one of the highest quality cats fitted on to downpipe.
Also, you do not need to use any O2 sensor spacer with GESI cats.
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17 C63S coupe
I have the Modalworks 200 cell catted downpipes. If I was going to do it over again I would have spent the extra $$ up front and gone with the Red Star GESI catted (300 cell I believe). The modalworks still have quite a bit of smell and had CEL on stock tune without o2 spacers.
That being said, love the sound. This was the first set of catted downpipes the shop that installed them (SSR) did, they're used to installing catless. I had a couple of them comment on how much better the catted ones sound. As Alex above said, they mentioned the catless were more raspy as well.
That being said, love the sound. This was the first set of catted downpipes the shop that installed them (SSR) did, they're used to installing catless. I had a couple of them comment on how much better the catted ones sound. As Alex above said, they mentioned the catless were more raspy as well.
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From: Orange County
2018 C63
Can those cats be used on other DPs?
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Joined: Dec 2020
Posts: 129
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From: Orange County
2018 C63
I have the Modalworks 200 cell catted downpipes. If I was going to do it over again I would have spent the extra $$ up front and gone with the Red Star GESI catted (300 cell I believe). The modalworks still have quite a bit of smell and had CEL on stock tune without o2 spacers.
That being said, love the sound. This was the first set of catted downpipes the shop that installed them (SSR) did, they're used to installing catless. I had a couple of them comment on how much better the catted ones sound. As Alex above said, they mentioned the catless were more raspy as well.
That being said, love the sound. This was the first set of catted downpipes the shop that installed them (SSR) did, they're used to installing catless. I had a couple of them comment on how much better the catted ones sound. As Alex above said, they mentioned the catless were more raspy as well.
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2020 C63s Coupe
Yea, GESI sells universal cats in various size which you can weld to other dp.
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From: Louisville KY
2016 AMG C63s
I’m glad I’ve been trying to research through people’s experiences. I was dead set on catless DPs but now after all the talk of sound quality, smell, etc....I’m really leaning towards catted.
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